Thread: Electronic Boost Gauge setup

If you were going to measure pressure at the inlet manifold, the 300 has a casting plug that you should be able to drill and tap (M10) at the rear passenger corner of manifold. From memory that corner is tight on a disco so would need to check for ckearance of pressure sender.

If you were going to measure in the pressure line between turbo and IP diaphragm, at the turbo there is a threaded 3 way junction, you may be able to work some poke-jiggery with that connector to adapt out to a VDO M10 X 1.25 T-piece?

Would be interested to know how you go as I too have an EMS and am keen on measuring boost?

Steve

Second question......

Is one position more advantageous than the other or is everyone taking the easy option of 'T' piece rubber as opposed to drill & tap steel?

mmmm...that might be three questions

Originally Posted by feral

Second question......

Is one position more advantageous than the other or is everyone taking the easy option of 'T' piece rubber as opposed to drill & tap steel?

mmmm...that might be three questions

According to Madmans, you can use the position that the oil pressure sender is in, then change the setting in the EMS1 to suit.

Baz.

Because of pressure drop through the pipework and intercooler, it is of more interest to know the pressure at the inlet manifold.

Where does a stock TD5 measure manifold pressure? I assume they do for the engine ecu, perhaps you can tee in there.

But metric fittings (bushings, tees etc.) are more difficult to source compared to BSP or NPT.

Well, I ended up taking the hard route and installed the sender unit in the EGR bypass tube. Easy job really and looks good.

Now for some boost readings......10psi

mmmmmm....something wrong here. So I bypassed the wastegate modulator.....11psi and she's hopping, bucking and obviously in overboost

Time for the Nanocom to compare....

Interesting timing!

My engines being disassembled at the moment...

So I drilled and tapped into the inlet manifold on the blank in the casting near the MAP sensor.. Easy whilst the manifold is off the head (no shavings into motor)

Pics soon when I get things finished...

Will be interesting to compare the outputs.. May even "T" in a mechanical gauge as well for comparison.

I was looking at the inlet manifold as well.....Do I, Don't I

Then considered the cost if I stuff it up and figured the EGR tube at $60 compared to whatever for the manifold. I still have the original EGR if it went pear shaped. Clear choice for a daily driver.

I don't know where everyone is taking their reading to get to 14.5psi and beyond.